L

Description	Represents a list structure that groups together a sequence of semantically related items.
Namespace	1.7 2.0
Category	block inline

Attributes

Placement

Specifies how the element is placed relative to surrounding content (e.g., block-level or inline flow).

WritingMode

Defines the direction of text flow (e.g., left-to-right, right-to-left, or vertical).

BackgroundColor

Sets the background color for the element’s content area.

BorderColor

Specifies the color of the border around the element.

BorderStyle

Indicates the style of the border (e.g., solid, dashed, dotted).

BorderThickness

Defines the thickness of the border line in user space units (such as points).

Padding

Determines the space between the element’s border (or boundary) and its inner content.

Color

Applies the primary color (fill or stroke) for the text or graphic content.

ListNumbering

Controls the numbering style used in lists (e.g., decimal, Roman, bullet).

ContinuedList

ContinuedFrom

role

Main indicator of type. This semantic association allows tools to present and support interaction with the object in a manner that is consistent with user expectations about other objects of that type.

Differences

Well tagged PDF:

The 'L' element in Well-Tagged PDF represents the container for a list. It groups together all list items, establishing the overall structure of a list.

It must enclose all 'LI' elements and be correctly nested within the document's structure tree to maintain the logical grouping and order of list content.

PDFUA:

In PDF/UA, the 'L' element is used to denote a list, providing a clear and navigable structure for a sequence of items.

It should be tagged to accurately represent the list structure and may be supplemented with descriptive metadata to aid assistive technologies.